Type-writing machine.



c.v H. VOGEL. mm: `WRITING; MACHINE. j `.lu'lfLIoA'noll rum) ina, 1911.'v 1,100,795.. I Patented June 23,1914

I 2 SHEETS-SHEET 1.

` mvEN'ToR:

WITNES' ESQ i cpu. VOGEL.- TYPI. WRITING MACHINE. APILIOATIOI FILED KAY3, I911.

Patented June 23, 1914.

2 SHEETS-SHEET z.

,y UNITED STATES.'

o HARLnsjH. VOGEL, 'or VANCOUVER, '.Bm'risncontribua, CANADA, s'sIaNon.To

l UNDERWOOD TYPEWm'rER COMPANY,

.nnLAWARn'- Specification of Letters Patent.

carica orfNnw YORK, N. y., n' OonronArIoN or 'rvrnvvnirINe MAoiIiNE.

- Patented June 23, l1914.

Original applicationled August 22, 1910, Serial No. 578,457. Dividedandthis application led May 3,'

" 1911. seria1N.e24,s27; l

T al? whom it may concern Be it known that I, CHARLES H. VOGEL,`asubject of the King of England, residing in Vancouver, in Athe county`of- Vancouver',

l Province of'BritishfColu1nbia'Dominion of` Canada, have` inventedcertain newV and useful Improvements in Type Writing' Ma-4 tion.

-- This invention relates tO the type action of chines,.of which lthefollowing is a' specifica- Y. writing machines and-is a division ofapplication No. 578,457, led August'22, 1910. The object of theinvention is to produce a simple and eiiicient type-action in which thekeys may be operated with 'a very light slight depression of a keyoperates mecha.-

nism to complete the depressionof the key. I may accomplish this withelectrical means, by closing a circuit in the initial movement of thedepressed key. Electromagnets in the circuit may then complete thedepression of the key and effect or assist in'etlecting the completionof Vthe printing stroke of the;

type, relieving the operator of labor' 'and also securing uniformstrokes ofthe type bars.

Other features andadvantages will hereinafter appear.

In the accompanying drawings,

which control the type action. This .v iew shows the mechanism in thenormal positlon. Fig. 2 is a viewsimilar to -Fig.1, but showing the.devicein operation, and illustrating how the solenoids operate toactuate the" type bar. Fig.' 3 is 'a horizontal section, taken nezr oneyof the side plates of the typewriter frame, andl further illustratingdetails of construction for closing the contacts which control thecircuits through the solenoids. Fig. el is a side view largelyv,diagrammaticy, showing two lkey levers,I one of which is partlydepressed. Fig. 5 is a -plan vieur showing lseveral key leversdiagrammati` cally. s e n g n.

Key levers 1 are mounted upon'a fulcrum. bar 2 ltovmrdthe rear of theframe, andtheirv lower edges are just above a universalbar Figure 1', isa diagrammatic view, showing part of a typen'riting. machine in verticalsection, and I illustrating' the arrangement of solenoids' 3, disposedtransversely to the frame and l mounted o n swinging arms 4.-,pivotallyheld on a horizontal fixedshaft 5', 'so that when'the keys arevdepressed, .the universal barswings down; and a spring. 6 isprovided"bet-ween the side wall A andlarm lfor returning the universallbar after universal bar moves down,it carries with it an adjustableContact arm 7, which is'adjustably attached to one of the arms' l'bymeans lof-aslot 8 andan adjusting screw 9. y The lower, end of thisarm'has-'a laterally ro? A jecting-contact pm 10j, in the path of w 'chlIlles' an 4insulated contactl 'plate 11 (on al being depressed. As theswinging support 33).. Conductor- 13f is connected to plate11,'and-conductor V12` is* connectedV tpin 10, .therebytofclose'a ci-`cuit through a depressingl soleneidyl-gfiand coil' and causes it 'todawfj'forwardly an armature 16, sairl-l armaturebeing attached to a stem17', whicheirtends rearwardly. from .a transverse universalbar'lr.

"A erysli ht depressionof'; lie-,key lever 'closes the-circuit, andasfthefbar-"Jmoves forwardly, its' 'forward beveledsedge 19 -proiets dwnfrom each key lever. leverv more completely, and swings lever 22 'on itsfulcruni 23 through theaction ,of a pin24, working in a slot 25, and the-sub I lever actuates a type bar 26, which is hung upon a segment 27inthe usual manner.

on rocker arms 28.

The conductor 30 is attached to y 33, so that when the rocker arm is ajinst The forward end of the-bar 18is'supporttdthe spring 32, as in itsnormal postlon, a circuit is closed throughcoil 31 and the ene'rgizedcoil 31 keepsthe armature 16 pulled and the rocker arm iexes a returnspring 35,

vsimilar to the spring 32; and when-the pin 10 has passed below thelower edgeofthe fioo contact plate 11,- the spring 35 swings the Y abattery' 15 in` this; circuit the normal position.

v has been touched;l and it should be underl arm 33 back to itsnormalvertical position.

When the 4pin 10 'passesun'derj the c ontact press it 'and' actuatethetype bars 26. As

soon las the spring 35 has returned the rocker 33 to its normal verticalposition, the circuit l through the conductors 29 and 30 and the battery30a is again closed, 'and the solenoid coil 31 draws back the bar 18. y

The spring 6 in returning the universal bar 3, will .return all ofthekeys 1, butif desired., al return-'lug-36 may be provided onthe underside of, each-key, as shown in .dotted lines in Figs. 1 and 2. Thisreturnlug or cam is inclined like the lug'21, so that as the bar 18 ispulled back,-its beveled rear edge 37 strikes thev inclined forward.edge of the lug 36, and pushes the key backto its It shouldbeunderstood that inthe normal position of the keys, the lower ends otthe ylugs are above the bar 18, so that as4 this bar advances under theaction ofthe coil 14,

`it can strike the lug only of the key. which stood that by` adjustingthe arm 7, themechanism can be arranged so that .avery slightldepression of the key will close the circuit through the solenoid 14,whereupon no further depressingforce need beexerted by the operator, forthe coil 14 ,then completes the type movement.

When-the universal b'aryf3 returns, thepin 10 rides up idly pastthebplate 11 on the.

' front, which is insulated at 40, so that cirtion, a key lever,anfelectric .circuit adapted -cuit through 12 and 13 is not closedatthis time. The arm 33 yields byr'swingin'g over.

'against spring 32 to permit the pin 10 to rise, and is then restored4by spring 32.` y It will be observed that from some points ot viewthe'v bar 18 and the electro-magnet 31 may be regarded as aretractingdevice for the type bars.

` Variations may be resorted-to within the scope of the invention. v

Having thus described-.my invention, I claim: Y 1. In a typewritingmachine, in combinato be closed bythe depression thereof,electro-magnetic means in said, circuit to complete the depression ofsaid key lever, and electro-magnetic means for returning said key leverafter depression.

'2. In a typewrlting machine, in combina# tion, a key 'lever-,landelectric circuit, a con? tact member. adapted to move when said key isdepressed, 'ia movable contact plate cooperating therewithto. closesaidycircuin a coil, in said circuit,` and means controlled "therebytocomplete. the depression of said key lever after said' circuit isclosed, said movable Contact plate being adapted to break the circuitbefore said key leve'rl iscompletely depressed,- a second coil, and

means to close a circuit through said second coil to return said key'lever.

3. In a typevvriting machine, in combination, a key lever, a contactmember adapted -to be depressed thereby, a contact plate in the path ofsaid contact .member and yadapted to -bedisplaced by said contactmember, so as to pass out of the path thereof', an

electric circuit passing through' said contact member and said Contactplate, and electri- 4'cally controlled means for depressing saidl keylever after slaidl circuit is closed and for returning saidkey. A

4.Y In aktypewriting machine, incombination, la key lever, a contact pinadapted to be moved when said key is depressed, a .contact plate l inthe path of said pin and adaptedftobe displaced thereby, an electriccircuit closed through said pin and contact plate, 'a coil in saidcircuit, a bar controlled by said coil and' adapted to be advancedthereby, said bar engaging said lever to depress the same, and anvelectric circuit automatically closed for returning said bar.

5. In a-typewriting,` machine, incombination, a key lever, a contact pinadapted to be displaced when said key lever is depressed, a swingingcontact plate in the path of said pin, an: electric circuit passingvthrough said pin and said contact plate, a coil in saidV circuit, a barcontrolled Aby said coil and adapted to depress said key after saidcircuit is closed, when said. pin strikes said contact plate, a secondelectric circuit closed when said contact plate isinits normal position,and a coil in said second electric circuit'for returning said bar.

6. In a typewrit'ingmachlne, 1n combination, a key lever, a circuitadapted'to be closed by the depression of said key lever, .a'

coil in said circuit, a bar controlled by said coil, said key leverhaving a projection adapted to be engaged by said bar to depress saidkey, and havin a second projection adapted tobe engage by said bar toreturn said key lever.

7. In a typewriting machine,t he cornbina-A tion, a key lever, a circuitadapted to be closed by the depression of said key' lever,

a coil in said circuit, a bar controlled' by said coil, said key leverhaving a projection in the path of said bar to be engaged thereby,-

and having a second projection adapted to be engaged by said bar to.return said key lever, and means for returning said bar.'

8. In a typewriting mac@e, in combination, a plurality of key levers, auniversal bar ladapted to be depressed by said keys, an'adjustable armcarried thereby, a contact pin on said arm, a Contact plate in the pathof said pin, an electric circuitadapted to be Aclosed bythe contactofsaid pin and said.

plate, a type bar, and electricall controlled means for actuating saidtype ar in each direction.' 4 i 9. In a typewriting machine, incombination, a key lever, a contactpin adapted to be displaced thereby,a lcontact plate in the path of said pin, resilient means for-normallyholding said contact plate in the path of said'pin, an electricallycontrolled device in said circuit for completing the depression of saidkeylever after said circuit is closed,

' a second electric circuit adapted vto be opened when said contactplate is displaced by said pin, said electric device including a baradapted to engage the key lever to-depress the same, and al coil in saidsecond circuit forv returning said bar.'

10. In a typewriting machine, the combination with a key lever, of auniversal bar.

operated by said lever, a contact point on said universal bar, laswinging arm carrying a terminal arranged to complete a circuit throughsaid contact point to depress said lever, a spring'arranged to holdsaidswinging arm so ,that it is returned to normal positi'on 'at thecompletion of the stroke of said key lever, and a second contact pointarranged to close a circuit to positively return said key lever.

11. In a typewriting machine, the c0mbination of a series offindependenttype-carriers, av series of operating keys therefor, a retracting bar,means lfor connecting said bar with any carrier at theprinting point,

an electromagnet for moving said retractng.; bar, and meansV foroperating; said magnet.

12. In a typewriting machine, in combination of a series of independenttypelbars, a yseries of operating keys, means for ad vancing a type-barto printing position, a normal said typeebar, and means for connectingsaid type-bar and retreating bar.

CHARLES H. voelen.4

Witnesses:v Gr.' C. WOODWARD,

A. E. GALPIN'.

y disconnected retracting bar for

